Firefox displaying input bars as black, equations in light gray

My Firefox is not displaying things correctly. 1. Bars on websites for me to enter text in are usually displayed in black, entered text is dark gray-ish (i can view it when i mark it, but that's only a temporary workaround) 2. Equations on Wikipedia are rendered in light gray for some reason. I recently updated to Firefox Quantum, hoping that this would solve the issues (it didn't). My machine is running Manjaro 17.1pre2 Hakoila, my desktop environment is Xfce and the window manager i am using is Xfwm with the Adapta-Nokto theme. My GTK theme is Vertex-Maia-Dark [GTK2].